Luna Oso Flaco RETRO


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Now Re-Introduced by popular demand, the NON Winged Version of Oso Flaco is called the "Oso Flaco Retro"

This flexible allround sandal is designed for all trails and works equally well on road. Barefoot Ted has put the original Oso through rigorous testing on many trails including the Leadville Trail 100, where they performed exceptionally well.

The Luna Oso Flaco Retro (Skinny Bear en Español) is a revelation in trail sandals with a tough, sole and full mouldable, flexible, midsole, topped by non-slip MGT footbed. An all new aggressive tread pattern, Vibram Megagrip, makes the Oso Flaco a great option for off-road running and adverse weather conditions where maintaining your footing is essential. This sandal can handle most advanced trails and wet conditions, whether running or walking, with the maximum groundfeel in the range.

The Oso Flaco Retro allows the feel of all those sharp rocks that otherwise can bruise and tenderize the bottom of your feet, without compromising the barefoot experience. The sole of this sandal is a 7mm with a 4.5mm Vibram Megagrip outsole which is lightweight, durable, and has an seriously aggressive tread pattern.

OSO Flaco Retro SPECS

Made in Vietnam Designed and Tested In the USA
Weight: 7.2 oz (single sandal, men's size 9)
Thickness: 7MM base + 4.5MM lugs
Sole: Non-Marking Vibram® Megagrip Outsole + Vibram® Midsole
Footbed: MGT (Monkey Grip Technology)
Laces: Performance Laces 2.0 with Tech Straps *Patented 
Vegan: Yes


Some people just can’t stop loving a great thing, or want to love something new that is old. What can we do for you? Easy! The RETRO line of LUNAs uses our tried-and-true PRE-WING lacing system known in the day as ATS (All-Terrain-Strapping) laces. You can have’em just like dad did in 2012!


Have you ever noticed how high-quality things work better, last longer, feel right? That’s why we’ve always been drawn to the finest SOLE materials the world can provide. Vibram® is world famous for being wizards in the field of soles and working with them, we’ve perfected OURS.



What’s so special about our lacing system? Infinite adjustability! Even our buckle can move freely on our patented one-continuous-loop lacing system. If you follow the webbing it goes from your toes all the way around to the top of your foot in one continuous fully adjustable loop. Foot freedom with security is real.


For those who demand the best in performance focused minimalist footwear that can handle the BIG adventures, the Oso Flaco Retro is super attractive.

Using our specially developed Vibram Megagrip studded tread, we've built a sandal that can handle the complex world of real adventure: mountains, rivers, trails, mud.


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